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Finding the Fourth Proportional to 86,697.42, 119,635.47 and 50,858.70

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Solution

The fourth proportional to 86,697.42, 119,635.47 and 50,858.70 is: 70,180.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,697.42 : 119,635.47 = 50,858.70 : x
  2. Step 2: Convert to fraction form
    86,697.42/119,635.47 = 50,858.70/x
  3. Step 3: Cross multiply
    86,697.42x = 119,635.47 × 50,858.70
  4. Step 4: Simplify right side
    86,697.42x = 6,084,504,478.09
  5. Step 5: Solve for x
    x = 6,084,504,478.09/86,697.42
  6. Step 6: Final answer
    x = 70,180.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.